Screen sharing doesn't work on Online Meeting Platforms

[sujanchegu]

Yes, I've looked through the following issues:

• Can't share screen in Google Meet #13469
• Google meet screen share fails #13591
  but none of these are related to this.

Description

The screenshare doesn't work. I experienced this first in Google Meet. The other people on the call are just able to see a blank screen but they could see the cursor movement. However, whenever I connect to them on firefox, they are able to see the whole screen.

I've made sure that

• cookies allowance is set to Cross-site cookies blocked
• Hangouts extension is enabled

Same is the case on jitsi Meet.

Steps to Reproduce

1. Join a meeting in meet.google.com
2. Select to present your screen to the call
3. Ask them if they're seeing just a blank screen

Actual result:

I've recorded a sample session.

This is the Screen Recorded using the default Gnome Recorder on the DESKTOP where the screen is presented:

This is the Screen Recorded on one my mobile joined the meeting:

Expected result:

Full screen being displayed. Firefox is able to share the screen properly.

Reproduces how often:

Always.

Brave version (brave://version info)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes, I'm on the latest release.
• Can you reproduce this issue with the beta channel?
• Can you reproduce this issue with the nightly channel?

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? Yes

Miscellaneous Information:

OS: Fedora release 33 (Thirty Three) x86_6 
Host: 81DE Lenovo ideapad 330-15IKB 
Kernel: 5.10.7-200.fc33.x86_64 
DE: GNOME 3.38.3 

Please let me know if any other information is needed.